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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Published on: February 28, 2016

Simple alignment technique for polarisation maintaining fibres.

P Arora1, A Agarwal, A Sen Gupta

  • 1Time and Frequency Division, National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi 110012, India.

The Review of Scientific Instruments
|January 10, 2012
PubMed
Summary
This summary is machine-generated.

This study presents a straightforward method for aligning polarized light with polarization-maintaining fibers. The technique uses wave plates for rapid and accurate polarization control, even with temperature changes.

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Area of Science:

  • Optical Engineering
  • Photonics
  • Materials Science

Background:

  • Accurate alignment of light polarization is crucial for many photonic applications.
  • Polarization-maintaining fibers require precise input polarization alignment.
  • Stress-induced perturbations can alter polarization states in optical fibers.

Purpose of the Study:

  • To develop a simple and rapid technique for aligning input polarization.
  • To compensate for polarization state perturbations in polarization-maintaining fibers.
  • To validate the technique's performance under varying environmental conditions, such as temperature changes.

Main Methods:

  • Utilized a combination of a half-wave plate and a quarter-wave plate.
  • The half-wave plate rotates the polarization of the incoming beam.
  • The quarter-wave plate compensates for stress-induced polarization perturbations.

Main Results:

  • The technique demonstrated rapid and accurate alignment of the input polarization state.
  • Effective compensation for stress-induced polarization perturbations was achieved.
  • The alignment method remained effective during temperature excursions on the fiber.

Conclusions:

  • The described technique offers an easy-to-implement and affordable solution for polarization alignment.
  • It provides quick and accurate results, suitable for practical applications.
  • The method is robust and effective even when subjected to environmental temperature variations.